126212656 has 20 divisors (see below), whose sum is σ = 252426304. Its totient is φ = 61070400.

The previous prime is 126212633. The next prime is 126212683. The reversal of 126212656 is 656212621.

126212656 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126735 + ... + 127726.

Almost surely, 2^126212656 is an apocalyptic number.

126212656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

126212656 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126212656 is a wasteful number, since it uses less digits than its factorization.

126212656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254500 (or 254494 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 126212656 is about 11234.4406180281. The cubic root of 126212656 is about 501.6116740981.

The spelling of 126212656 in words is "one hundred twenty-six million, two hundred twelve thousand, six hundred fifty-six".